[Intel-xe] [PATCH v4 21/21] drm/xe/guc: Port Wa_14014475959 to xe_wa and fix it

[Lucas De Marchi]

Port Wa_14014475959 to xe_wa fixing its condition. The workaround should
only be applied on the primary GT, not on media. So just checking by
MTL platform is not enough: checking GT is of the right type is also
needed.

Since the GRAPHICS_STEP() does checks the GT type, we could leave the
first check as a platform one: it'd would be easier to understand and
not go out of sync with the graphics_ip_map[] in
drivers/gpu/drm/xe/xe_pci.c. However it also means that new platforms
using the same IP wouldn't match. Prefer using the IP version.

Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/xe/xe_guc.c        | 4 +---
 drivers/gpu/drm/xe/xe_wa_oob.rules | 2 ++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c
index 3ed460d3b6ca..ecc843d91f62 100644
--- a/drivers/gpu/drm/xe/xe_guc.c
+++ b/drivers/gpu/drm/xe/xe_guc.c
@@ -142,9 +142,7 @@ static u32 guc_ctl_wa_flags(struct xe_guc *guc)
 	if (XE_WA(gt, 16011759253))
 		flags |= GUC_WA_GAM_CREDITS;
 
-	/* Wa_14014475959 */
-	if (IS_PLATFORM_STEP(xe, XE_METEORLAKE, STEP_A0, STEP_B0) ||
-	    xe->info.platform == XE_DG2)
+	if (XE_WA(gt, 14014475959))
 		flags |= GUC_WA_HOLD_CCS_SWITCHOUT;
 
 	if (XE_WA(gt, 22011391025) || XE_WA(gt, 14012197797))
diff --git a/drivers/gpu/drm/xe/xe_wa_oob.rules b/drivers/gpu/drm/xe/xe_wa_oob.rules
index fc9846af460c..c58f3eb3e993 100644
--- a/drivers/gpu/drm/xe/xe_wa_oob.rules
+++ b/drivers/gpu/drm/xe/xe_wa_oob.rules
@@ -1,5 +1,7 @@
 22012773006	GRAPHICS_VERSION_RANGE(1200, 1250)
 16011759253	SUBPLATFORM(DG2, G10), GRAPHICS_STEP(A0, B0)
+14014475959	GRAPHICS_VERSION_RANGE(1270, 1271), GRAPHICS_STEP(A0, B0)
+		PLATFORM(DG2)
 22011391025	PLATFORM(DG2)
 14012197797	PLATFORM(DG2), GRAPHICS_STEP(A0, B0)
 16011777198	SUBPLATFORM(DG2, G10), GRAPHICS_STEP(A0, C0)
-- 
2.40.1